同义句she studies very hard to get good mards.but it's very har

同义句she studies very hard to get good mards.but it's very har It's hard to get good grades.同义句 Maria studies very hard and she always gets good g_ She found it hard to take care of the baby的同义句 _____ was har Peter is good (s ),He studies very hard. It's necessary to study hard in the school.(改为同义句) study har his sister studies very hard.改为同义句 it very hard to还是it's very hard to? She works very hard.改同义句 It is snowing very hard .同义句 The classroom is very dirty.it is hard to clean it和it is har she studies very hard 用德语怎么说